TY - BOOK AU - Parker,E R &others TI - The Mechanical properties of some ionic materials,and the effect of surface conditions on their room temperature ductili PY - 1957/// CY - U.S. Department of Commerce,Washington PB - USA UR - http://14.139.222.13:80/cgi-bin/koha/opac-detail.pl?biblionumber=2717 ER -